Rachel Uchitel and husband Matt Hahn welcomed a baby girl on Tuesday, E! News reports.
The baby, named Wyatt Lilly, weighed a little over 7 pounds.
Former Tiger Woods mistress Rachel Uchitel is pregnant
On Saturday, the 37-year-old the nightclub manager tweeted, "Today is my due date... Spent it swimming laps, taking dogs do the beach and catching up with friends. Now what?!"
Uchitel became a tabloid sensation after she was romantically linked to Tiger Woods at the time of his cheating scandal. She was also rumored to have had an affair with Bones star David Boreanaz.
Uchitel, who appeared on Season 4 of Celebrity Rehab, wed Hahn in October. She was previously engaged to investment banker James Andrew O'Grady, who died in the 9/11 attacks, and was married for four months to Steven Ehrenkranz in 2004.